Home / 6,147.20-9,202.56-3,949.28

Finding the Fourth Proportional to 6,147.20, 9,202.56 and 3,949.28

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Solution

The fourth proportional to 6,147.20, 9,202.56 and 3,949.28 is: 5,912.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,147.20 : 9,202.56 = 3,949.28 : x
  2. Step 2: Convert to fraction form
    6,147.20/9,202.56 = 3,949.28/x
  3. Step 3: Cross multiply
    6,147.20x = 9,202.56 × 3,949.28
  4. Step 4: Simplify right side
    6,147.20x = 36,343,486.16
  5. Step 5: Solve for x
    x = 36,343,486.16/6,147.20
  6. Step 6: Final answer
    x = 5,912.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.